ci/test: Move and rename .lava-fluster to .test-fluster

It has nothing to do with LAVA, it just happens that the first fluster
job was running on LAVA.

Also drop the redundant :x86_64 definition.

Signed-off-by: Valentine Burley <valentine.burley@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34787>

.gitlab-ci/lava/lava-gitlab-ci.yml

@@ -195,13 +195,3 @@ variables:
   extends:
     - .lava-arm64-test-gl
     - .lava-piglit-traces
-
-.lava-fluster:
-  variables:
-    FLUSTER_RESULTS: "${GPU_VERSION}-${FLUSTER_CODEC}"
-    HWCI_TEST_SCRIPT: "/install/fluster/fluster-runner.sh"
-
-.lava-fluster:x86_64:
-  extends:
-    - .lava-fluster
-

.gitlab-ci/test/gitlab-ci.yml

@@ -183,6 +183,11 @@ yaml-toml-shell-py-test:
   variables:
     ANGLE_TAG: ${CONDITIONAL_BUILD_ANGLE_TAG}
 
+.test-fluster:
+  variables:
+    FLUSTER_RESULTS: "${GPU_VERSION}-${FLUSTER_CODEC}"
+    HWCI_TEST_SCRIPT: "/install/fluster/fluster-runner.sh"
+
 .test-piglit:
   variables:
     PIGLIT_TAG: ${CONDITIONAL_BUILD_PIGLIT_TAG}

src/amd/ci/gitlab-ci-inc.yml

@@ -466,7 +466,7 @@
 ############### Fluster tests ###############
 .radeonsi-raven-vaapi-fluster:
   extends:
-    - .lava-fluster:x86_64
+    - .test-fluster
   rules:
     - !reference [.radeonsi-vaapi-rules, rules]
     - changes: